<template>
  <div class="app-container">
    <h2 style="text-align: center;">发布新课程</h2>

    <el-steps :active="3" process-status="wait" align-center style="margin-bottom: 40px;">
      <el-step title="填写课程基本信息" />
      <el-step title="创建课程大纲" />
      <el-step title="提交审核" />
    </el-steps>

    <div class="ccInfo">
      <img :src="coursePublish.cover">
      <div class="main">
        <h2>{{coursePublish.title}}</h2>
        <p class="gray"><span>共{{coursePublish.lessonNum}}课时</span></p>
        <p><span>所属分类：{{ coursePublish.subjectOneName }} — {{ coursePublish.subjectTwoName }}</span></p>
        <p>课程讲师：{{ coursePublish.trainerName }}</p>
        <h3 class="red">￥{{ coursePublish.price }}</h3>
      </div>
    </div>

    <el-form label-width="120px">
      <el-form-item>
        <el-button @click="previous">返回修改</el-button>
        <el-button :disabled="saveBtnDisabled" type="primary" @click="publish">发布课程</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>
import {getCoursePublishVoById} from "@/api/course/course";

export default {
  data(){
    return {
      saveBtnDisabled: false,           // 定义按钮是否可以被点击
      courseId: undefined,
      coursePublish: {}
    }
  },
  methods: {
    // 返回修改
    previous(){
      this.$router.push({path: '/course/course/chapter', query: {id: this.courseId}});
    },
    // 发布课程
    publish(){

    },
    getCoursePublishVoById(){
      getCoursePublishVoById(this.courseId).then(response => {
        this.coursePublish = response.data;
      });
    }
  },
  created(){
    // 页面一进来就需要获取地址栏中的课程ID
    if(this.$route.query && this.$route.query.id){
      console.log("地址栏中的课程ID的为：" + this.$route.query.id)
      this.courseId = this.$route.query.id;
      this.getCoursePublishVoById();
    }
  }
}
</script>
<style scoped>
.ccInfo {
  background: #f5f5f5;
  padding: 20px;
  overflow: hidden;
  border: 1px dashed #ddd;
  margin-bottom: 40px;
  position: relative;
}
.ccInfo img {
  background: #d6d6d6;
  width: 500px;
  height: 278px;
  display: block;
  float: left;
  border: none;
}
.ccInfo .main {
  margin-left: 520px;
}

.ccInfo .main h2 {
  font-size: 28px;
  margin-bottom: 30px;
  line-height: 1;
  font-weight: normal;
}
.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}

.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}
.ccInfo .main h3 {
  left: 540px;
  bottom: 20px;
  line-height: 1;
  font-size: 28px;
  color: #d32f24;
  font-weight: normal;
  position: absolute;
}
</style>
